Remove Ubuntu 23.04 and 23.10

Their packages are removed from https://archive.ubuntu.com/ubuntu/dists/ so
continued support for them is impossible.

README.rst

@@ -73,7 +73,7 @@ Debian_        13 (pre-release)
 Fedora_        37-41, 42 (rawhide)
 Manjaro_       rolling
 O̶p̶e̶n̶S̶U̶S̶E       Redacted due to too many upstream issues
-Ubuntu_        23.04-24.10, 25.04 (rerelease)
+Ubuntu_        24.04-24.10, 25.04 (prerelease)
 Void_          rolling
 =============  ===========================================
 

docs/source/ubuntu.rst

@@ -19,8 +19,6 @@ Basic usage::
 The default target Ubuntu version is the latest long term support release.
 Other versions can be targeted using:
 
-* ``polycotylus ubuntu:23.04`` for Lunar Lobster (interim release)
-* ``polycotylus ubuntu:23.10`` for Mantic Minotaur (interim release)
 * ``polycotylus ubuntu:24.04`` for Noble Numbat (long term support, default) or Linux Mint 22
 * ``polycotylus ubuntu:24.10`` for Oracular Oriole (interim release)
 * ``polycotylus ubuntu:25.04`` for Plucky Puffin (interim pre-release)

polycotylus/__init__.py

@@ -13,7 +13,7 @@ def machine():
 from ._fedora import Fedora, Fedora37, Fedora38, Fedora39, Fedora40, Fedora41, Fedora42
 from ._void import Void, VoidGlibc, VoidMusl
 from ._debian import Debian, Debian13
-from ._ubuntu import Ubuntu, Ubuntu2304, Ubuntu2310, Ubuntu2404, Ubuntu2410, Ubuntu2504
+from ._ubuntu import Ubuntu, Ubuntu2404, Ubuntu2410, Ubuntu2504
 
 distributions = {i.name: i for i in (Alpine, Arch, Debian, Fedora, Manjaro, Ubuntu, Void)}
 distributions["alpine:3.17"] = Alpine317
@@ -28,8 +28,6 @@ def machine():
 distributions["fedora:40"] = Fedora40
 distributions["fedora:41"] = Fedora41
 distributions["fedora:42"] = Fedora42
-distributions["ubuntu:23.04"] = Ubuntu2304
-distributions["ubuntu:23.10"] = Ubuntu2310
 distributions["ubuntu:24.04"] = Ubuntu2404
 distributions["ubuntu:24.10"] = Ubuntu2410
 distributions["ubuntu:25.04"] = Ubuntu2504

polycotylus/_completions/polycotylus.fish

@@ -2,7 +2,7 @@ set -l distributions alpine arch debian fedora manjaro ubuntu void
 set -l alpine_variants alpine:3.17 alpine:3.18 alpine:3.19 alpine:3.20 alpine:edge
 set -l debian_variants debian:13
 set -l fedora_variants fedora:37 fedora:38 fedora:39 fedora:40 fedora:41 fedora:42
-set -l ubuntu_variants ubuntu:23.04 ubuntu:23.10 ubuntu:24.04 ubuntu:24.10 ubuntu:25.04
+set -l ubuntu_variants ubuntu:24.04 ubuntu:24.10 ubuntu:25.04
 set -l void_variants void:musl void:glibc
 set -l all_variants $distributions $alpine_variants $debian_variants $fedora_variants $ubuntu_variants $void_variants
 set -l atomic_flags --completion --list-localizations --configure --presubmit-check

polycotylus/_ubuntu.py

@@ -22,18 +22,6 @@ def _install_user(self):
         return "RUN userdel ubuntu\n" + super()._install_user()
 
 
-class Ubuntu2304(Ubuntu):
-    base_image = "ubuntu:23.04"
-    tag = "23.04"
-    mirror = _mirror.mirrors["ubuntu2304"]
-
-
-class Ubuntu2310(Ubuntu):
-    base_image = "ubuntu:23.10"
-    tag = "23.10"
-    mirror = _mirror.mirrors["ubuntu2310"]
-
-
 Ubuntu2404 = Ubuntu
 
 

tests/test_ubuntu.py

@@ -52,7 +52,6 @@ def test_ubrotli():
     # Ubuntu's repository layout is different for non amd64 architectures which
     # unfortunately makes it necessary to do an extremely slow qemu platform test.
     for self in [
-        polycotylus.Ubuntu2304(Project.from_root(shared.ubrotli), architecture="amd64"),
         polycotylus.Ubuntu2404(Project.from_root(shared.ubrotli), architecture="arm64"),
         polycotylus.Ubuntu2504(Project.from_root(shared.ubrotli), architecture="amd64"),
     ]:
@@ -62,14 +61,6 @@ def test_ubrotli():
         self.update_artifacts_json(artifacts)
 
     assert json.loads((shared.ubrotli / ".polycotylus/artifacts.json").read_bytes()) == [
-        {
-            "distribution": "ubuntu",
-            "tag": "23.04",
-            "architecture": "amd64",
-            "variant": "main",
-            "path": ".polycotylus/ubuntu/23.04/python3-ubrotli_0.1.0-1_amd64.deb",
-            "signature_path": None,
-        },
         {
             "distribution": "ubuntu",
             "tag": "24.04",